\input pstfig
\qquad\qquad
$
\def\myR{4.06}
\pnode(0,0){O}
\pnode(\myR;  0){A}
\pnode(\myR; 60){B}
\pnode(\myR;120){C}
\pnode(\myR;180){D}
\pnode(\myR;240){E}
\pnode(\myR;300){F}
\pspolygon(A)(B)(C)(D)(E)(F)
\psset{hatchangle=0,hatchwidth=0.4pt}
\psline(A)(D)
\psline(B)(E)
\psline(C)(F)
\noneline
\pspolygon[fillstyle=hlines](B)(C)(O)
\pspolygon[fillstyle=hlines](D)(E)(O)
\pspolygon[fillstyle=hlines](F)(A)(O)
\solidline
\cnode[fillstyle=solid](0,0){0.6}{O}
%\uput{0}[0](O){1}
\font\bigtenit=cmti10 scaled 1440
\rput(O){\hbox{\bigtenit 1}\,}
\def\tg{\mathop{\rm tg}}
\def\ctg{\mathop{\rm ctg}}
\psset{labelsep=1ex}
\Rput[l](A){\ctg x}
\Rput[b](B){\cos x}
\Rput[b](C){\sin x}
\Rput[r](D){\tg x}
\Rput[t](E){\sec x}
\Rput[t](F){\csc x}
$
\bye
